SUMMARY

• A Linux System Administrator with eight years of system deployment and management work experience, specializing in the planning, development, design, deployment, monitoring, and support of IT hardware and software.
• Strong experience in Installation, Upgrading, Migration, Configuration, Troubleshooting, Administering Linux.
• Experience in monitoring the availability performance of Linux servers.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Interacted with different hardware and software vendors to troubleshoot the hardware and software problems.
• Deep understanding of key protocols and systems such as: NFS, DNS, SMTP, TCP/IP, RAID, network printing.
• Quick learner and team player with strong analytical, trouble-shooting and communication skills. Possess a talent for making things work right.
• Demonstrated sense of urgency in fast paced environment.
• Outstanding customer service skills, Proven ability to build excellent customer relationships

TECHNICAL SKILLS

• Hardware: Sun SPARC Enterprise T5120,T5220 and T5240, SPARC Server 1000, Ultra Enterprise 3000/4000, SUN Enterprise- 420R/450, E3500/4500/6500, SUN FIRE V120,V240,V440,V490,V880,3800, Sun Fire E15K,E25K Servers, HP Proliant BL/DL Servers, IBM HS20/HS40, eserver x-series 335/345/365/366
• O/S : Sun Solaris 10/9/8,AIX 4.x/5.x,Red Hat Linux 4/5, Windows Vista/XP, Windows 95/98,
• Workstation, Sun Blade 150/1500, Sun Blade 6000
• Protocols: NetBIOS, NetBEUI, SMTP, SNMP, ICMP, TCP/IP, FTP, TELNET, UDP, and RIP
• Naming Services: DNS, NIS, NIS , LDAP
• Backup Tools: VERITAS NetBackup 5/6/6.5, Ufsdump, Ufsrestore, tar, dd, cpio
• Script Languages: Shell Scripts Korn/Bourn
• RDBMS: Oracle 10g, 8i /9i, MS ACCESS, PL/SQL
• Web Technologies: Apache 2.x/3.x, Websphere 5.0/6.0, SAMBA
• Packages: SAS, SAS/GRAPH

WORK EXPERIENCE

Confidential

Unix/Linux Administrator

• Installing and configuration of Red hat Linux 5, 6 and Oracle Solaris.
• Proficient in configuring JumpStart and Kick Start servers to initiate installation of Solaris and RedHat Linux on several machines at once.
• Configured volume groups and logical volumes using Logical Volume Manager LVM commands.
• Involved in applying new patches and packages for Solaris and Linux Servers and handled issues arising out of them.
• Installation of SSH and configuration of keys bases authentication.
• Responsible for monitoring system performance and health by using a tool Nagios.
• Nagios Monitoring tool installation on Linux servers /client and configuration Network, Disk File system usage, Storage and TCP/IP monitoring
• Configuring, testing and debugging the applications.
• Knowledge of TCP/IP, HTTP/HTTPS/SSL, CISCO routers and switches
• Integrating Linux file systems using packages like SAMBA. Setting up printers on Linux / NT machines to work seamlessly across platforms.
• Assisting Development team to provide the information and troubleshooting.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Working closely with Vendors on Hardware Problems, software fixes.
• Administration of NFS, NIS, DNS, Samba and Sendmail servers.
• Provided 24X7 support for large number Production, Development and Test systems.
• Setup, maintain and management of user accounts and groups according to the security needs and adding the packages and patches when needed.
• Basic creation and troubleshooting on scripting like Shell/Perl.

Unix/Linux Administrator

• Installation, Administration and Maintenance of Solaris 10, RHEL 5.0, Windows 2003 and 2008 Operating System in an environment involving over 200 Servers.
• Installation and configuration of Solaris, Linux for new build environment.
• Configuration of network equipment for newly builds servers.
• Installation and configuration of Solaris Zones.
• Adding Disks and creating Slices and File system Administration. Disk replacement Root disk / Data disk .
• Configuring and monitoring Disk mirroring, striping using LVM.
• NFS configuration administration.
• Monitoring troubleshooting with performance related issues
• Managing all rebooting part replacement activities. Managing upgrade of Linux and Solaris servers.
• User Management Administration. File system management.
• Ticket assessment on daily basis. Creating SOP Standard Operating Procedure .
• Swap space management, Job Scheduling and Automating process using CRON AT.
• RAID configuration and Installation of patches and packages.
• Configuring and managing network interfaces.
• Basic creation and troubleshooting on scripting like Shell/Perl.

Unix/Linux Administrator

• Day-to-day functional administration tasks, as well as application-specific technical support.
• On hand experience on Solaris OS installation using jumpstart, Configuration and troubleshooting.
• Creating users under different groups, working with Files and Directories regular trouble shooting, server and client related problems.
• Password configurations, Disk management, process monitoring, Boot up and Shutdown procedures.
• Maintaining the regular backups using tar, ufsdump, ufsrestore, Snap shot backup etc.
• Configuring SWAP, NFS servers and clients with AutoFS and NIS, Syslog messages.
• Configuring the services for sharing the resources from UNIX such as remote login through TELNET, FTP.
• Checking alert logs and trace files. File System maintenance, performance tuning.
• System error and performance analysis with tools like Explorer, sun-checkup, core dumps and ATS Resolution Methods.
• Printer and Package Administration and providing the organization with complete Internet and intranet facilities.

Desktop Support Engineer

• Duties include user administration, scheduling jobs using crontabs, file system maintenance, scripting and automation. Performed User account management, data backups, and user's logon support.
• Worked with security team to remediate vulnerabilities on Solars 8,9,10
• Followed ITIL prescribed procedures for incident, problem and change management
• Augmented existing team members in support of key data warehouse Sun 15K and Enterprise Portal servers provided maintenance and capacity enhancement support
• Installation and support of Apache webservers
• Effectively resolving any networking related issues, Network Printers, Application related issues.
• Monitoring installation troubleshooting: Operating Systems Win XP, Win2k server ,
• Troubleshooting with DNS and DHCP.
• Installation of Antivirus and Troubleshooting with Virus issues.
• Troubleshooting with Software and Hardware.

Junior System Administrator

• Installed and configured all the Linux servers in the network per specifications of clients.
• Monitored the servers and Linux scripts regularly and performed troubleshooting steps Tested and installed the latest software on server for end-users.
• Attended calls related to customer queries and complaints, offered solutions.
• Performed routine checks on the Linux servers of the firm.
• Maintained necessary back-up of the important files and documented Linux scripts for future reference.
• Maintained existing programs/scripts and extended Linux system functionality as needed.